The presets I created were specifically for Spurs Engine. The encoder drop down is set to use Spurs Engine. So I have no idea what the effect is if ou don't have a Spurs Engine card, it may default to standard Mpeg 2 for all I know. Scratching my head what you were trying to achieve using them.

If you had a FireCoder Blu it would take 10-12 minutes fo rthe 20min video - yes!!